Machine for automatically sweating or uniting without solder the side seams of sheet-metal can-bodies.



' Patentgd FOIL l8, I902. E. NORTON & A. P KENNEDY. I MACHINE FOB AUTOMATIGALLY SWEATI HG 0R UNITING WITHOUT SOL'DEB THE SIDE SEAM'S 0F SHEET METAL CAN BODIES.

med Sept. 10, 1900.

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- No. 693,804. I Patent-edFeh. l8-.; I902. E; NORTON 8a, A. P. KENNEDY. MAGI'IINE FOB AUTOMATICALLY SWE'AT'INB OB UNITINGWI TI'IOUT SOLOEB THE 2 mV m m TM 0 n a V A n 5 01 I 8 Z %Y WK. wh M I luI h i m m SIDE SEAUSYASI'IEET METAL GAN BODIES.

WITNESSES.

No. 693,804. Patehted Feb. l8, I902.

E. NORTON &A. P. KENNEDY. MACHINE FOR AUTOMATICALLY SWEATING OR UNITING W ITI'IOUT SOLDEB THE SIDE SEAIIS 0F SHEET METAL CAN BODIES,

(Appiiation filed Sept. 10, 1900.)

{No model.) SShaats-Sheet 3.

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No. 693,804. Patented" Feb. I8, I902.

E. NORTON & A. P. KENNEDY. MACHINE FOR AUTOMATICALLY SWEATING OR UNITING WITHOUT SOLDER THE SIDE SEAMS OF SHEET METAL CAN BODIES.

' (Application filed Sept. 10, 1900., (No Model.) 5 Sheets-Sh8et 4.

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No. 693,804. v I W Patented Feb. I8, I902.

E. NORTON 8:. A. F. KENNEDY.

MACHINE FOR AUTOMATICALLY SWEATING OR UNITING WITHOUT SOLOEB T HE I SIDE SEAIIS OF SHEET METAL' CAN BODIES.

* (Application ma Bept.,10 woo.) no-mum.

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UNITED STATES P TENT OFFICE.

EDWIN NoRToN AND ARTHUR P. KENNEDY, E MAYwooD, ILLINOIS, SS eNoRS, BY MESNE A SIGNMENTS,- TO AMERIoAN oAN COMPANY, OF JERSEY CITY, NEW JERSEY, A ooRPo ATIoN OF NEW JERSEY.

I MACHINE FOR AUTOMATICALLY SWEATING OR'UNITING WITHOUT SOLDER THE SIDE SEAMS 0F SHEET-METAL CAN-BODlES.

SPECIFICATION forming part of Letters Patent N 0. 693,804, dated February 18, 1902.

Application filed September 10, 1900. Serial No. 29,574. (No model.)

1'0 all whon it may concern:

Be it known that we, EDWIN NORTON and ARTHUR-P. KENNE Y, citizens of the United States, residingin Maywood, inthe county of Cook and State of Illinois, have invented a new and useful Improvement in Machines for Automatically Sweating or Uniting Without Solder the Side Seams 0f Sheet-Metal Gan- Bodies, of which the following is a specifica-' tion.

This invention relates to machines for S01- dering or uniting the seams of sheet-metal cans which have a tin or other soft-metal coating without the use of'additional solder by simply fusing the tin or other soft-metal coating of the sheet metal;

It relates more particularly to improvements upon the machine forming the subject of the pending application of Edwin Norton, Serial No. 720,451, filed June 14,1899.

The object of the present invention is' to provide an automatic machine of a simple, cf-

ficient, and durable construction in which the seams of cans may be rapidly, cheaply, and perfectly soldered or united by such sweating or fusing operation and without the use of additional solder.

The machine embodying theinvention comprises a series of heater-bars arranged in pairs, each furnished with an electric heater inside the same, a movable carrier or table upon which they are mounted, a series of verticallyswinging arms on the-carrier, to which the upper heater-bars of each pair are secured,'a cam, track, or device for automatically lifting the upper heater-bars inturn asthe car rier travels aroundto permit the unsoldered can-bodies to be placed on the lower heaterbars and to permit the seam compressing roller and the can-bodyejector each to cooperate in turn with each of the lower heater-.

bars as the carrier moves around, a series of horns upon which the lower heater-bars are ing one of the ejector fingers or jaws.

device cooperating in turn with each of the lower heater-bars, and a can-body ejector likewise cooperating in turn with each of the horns upon which the lower heater-bars are secured.

is a vertical longitudinal section through one pairof the heater-bars, and Fig. 7 a detail front view of one pair of the heater-bars and its supporting-arm and horn.

Similar figures of reference indicate like parts in all the figures of the drawings. In the drawings, 11 represents the frame of the machine.

12 is the heater-bar carrier, the same consisting, preferably, of a rotary'table having an intermittent or step-by-step movement.

13 14 are a series of pairs of heater-bars each having a hole or chamber 15, in which is an electric heater or carbon stick 16, secured in place by metal caps or clamps 17 18, one at eachend of the carbon, each cap 17 being insulated from the-heater-bar by insulation 19 andeach cap 18 in electric connection therewith, sothat the current must pass from end to end through each carbon, and thus heat the same. Each of the upper heaterbars 13 is secured to a vertically-swinging arm '20, hinged to the carrier 12 by a pivot-pin 21. Each of the. upper heater-bar-carrying arms 20 is made heavy enough so that the weight thereof will serve to press the upper heater,- bar against the lower heater-bar with the required force or pressure to properly embrace and heat the seam of the can-body inserted betweenthe heater-bars while the carrier 12 moves around. Each of the lower heater-bars 1% is secured to a horn 22, over or around which the can-bodies may be placed and which are secured in a radial position on the carrier 12. Each of the lower heater-bars 14 is furnished with a longitudinal groove or channel 23 to receive the side seam of the can-body, and the supporting-horns 22 are each furnished with longitudinal grooves 24 24 to receive the hooks, fingers, orjaws of the ejector.

25 26 are the electric contact or collector rings on the rotating carrier 12, the electric heaters 16 in the upper heater-bars being all connected in multiple to the ring 25, and the heaters 16 in the lower heater-bars 14: being all connected in multiple to the ring 26. The rings 25 26 are connected by circuit-wires 27 28 with the regulating-transformer 29,th rough which the current is supplied to the electric heaters, so as to always heat and maintain the same at the required or proper degree of heat.

The seam-compressing roller 30 is mounted upon a reciprocating carriage or slide 31 and reciprocates forward over each of the lower heater-bars 1% in turn when it is brought around and stopped by the carrier 12 in front of said roller, thus compressing the parts or folds of the seam between itself and the lower heater-bar. At this time the vertically-swinging arm 20, carrying the corresponding upper heater-bar, is swung up out of the way into an upright position, as illustrated in Fig. 1, by the engagement of its bent arm 32 against the stationary curved track or cam 33, mounted on the central upright standard 34 of the frame. The bent arm 32 is preferably furnished with an antifrietion-roller 35 to engage the cam. The curved track or cam also holds said arm 20 elevated or out of the way at the next step or stop of the carrier and while the can-body ejector 36 reciprocates forward and back and strips or ejects the can from the horn 22 and also at the next succeeding step or stop of the carrier where the can-bodies are placed upon the horn by the operator. A

The can-body ejector or extractor 3b preferably consists of apair of hook-shaped fingers or jaws pivotally mounted upon a reciprocating slide or carriage 37, which moves back and forth on suitable guides 38 on the frame of the machine, the jaws or fingers being held closed against the horn by light springs 39 and having cam-shaped front ends 40, so that they may slip over the can-body as the ejector moves forward over the horn to permit the hooks to engage the rear end of the can-body. A set-screw 41 limits or adjusts the closing movement of the finger against the horn.

The necessary reciprocating movements may be automatically imparted to the ejectorcarrying slide and to the seam-compressingroller-carrying slide, and the necessary stepby-step or intermittent rotary movement to the table or carrier 12 by any suitable means or mechanism. The preferred means or mechanism for these purposes is illustrated in the drawings.

The outer end of each of the horns 22 is in turn supported at the time the seam is being compressed by the roller 30 against the lower heater-bar by a roller 42, which is interposed between the outer projecting end 43 of the horn and the support 44 on the frame. This gives a firm support to the hornand insures uniform and proper compression of the parts or folds of the seam. The horn-supporting roller 42 is mounted on the arm of a rockshaft 45 and is engaged by the projecting end 43 of the horn as the carrier 12 moves the horn into position to register with the seamcompressing roller, and thus moves the roller 42 onto the support 44 and at the same time rocks the shaft 45, which has another arm 46, connected by a link 47 with a lever 48, which operates, through the link ti) and lever 50, a clutch 51, by which the loose pulley 52 is clutched to the shaft 53, which carries the crank-wheel 54, that reciprocates, through the pitman or link 55, the slide 31, which carries the seam-compressing roller. The seamcompressing-roller-carrying slide is thus automatically set in operation by the movement of the horn 22 into position to cooperate with the seam-compression roller. The slide 37, which carries the can-body ejector 36, is simultaneously reciprocated, as itis connected bya link 56'with a crank-wheel'57 on a shaft 58, which is connected by gears 59 60 to the shaft 61, which is geared, through gears 62 (33 80, on the shaft53.

52 is the driving-pulley.

As illustratedin the drawings, the step-bystep or intermittent rotary movement is communicated to the table or carrier 12 by means of a notched wheel or ratchet 65 on its driving-shaft, which is engaged by a pawl or catch 66 on a swinging arm 68, that is operated by the crank-Wheel 69 through the pitman or link 70. The driving-shaft of the rotary carrier or table is further provided with a notched looking or registering wheel 71, which is engaged by a lock bolt or block 72, operated by a spring 73, and which is disengaged bya projection 74 on the swinging pawlcarrying arm 68.

We claim 1. The combination with a movable carrier or table, of a series of pairs of heater-bars mounted thereon, electric heaters inside said bars, a pair of contact or collector rings on said carrier, a series of movable arms upon which the upper heater-bars are mounted, a series of horns upon which the lower series of heaterbars are mounted, a reciprocating seam-compressing roller, a reciprocating canbody ejector, a cam or track for elevating the upper heater-bars, and a support for the outer end of each of said horns in turn while under action of the seam-compressing roller, substantially as specified.

2. The combination with a movable carrier, a series of horns mounted thereon, a series of able arms to which said upper heater-bars are secured, substantially as specified.

3. The combination with a movable carrier, a series of horns mounted thereon,.a-series of lower-heater-bars secured tosaid horns, aseries of upper heater-bars, a series of movable arms to which said upper heater-bars are secured, and a stationary camor track for lifting or raising the upper heater-bar-carrying arms, substantially as specified.

4. The combination with a movable carrier,

a series of horns mounted thereon, a series of lower heater-bars secured to said horns, a series of movable arms to which said upper heater-bars are secured, and a seam-compression roller mounted upon a reciprocating slide, substantially as specified.

5. The combination with a movable carrier, a series of horns mounted thereon, a series of lower heater-bars securedto said horns,ase-

ries of upper heater-bars, a series of movable arms to which said upper heater-bars are secured, a seam-compression roller mounted upon a reciprocating slide, and-a support for the outer end of'each hornin turn while being operated upon by the seaming-roller, substantially as specified. 1

6. The combination with a movable carrier, a series of horns mounted thereon, aseries of lower heater-bars secured to said horns,-a series of upper heater-bars, a series of movable arms to which said upper heater bars are secured, and a reciprocating can-body ejector,

substantially as specified.

7. The combination with a movable carrier, a series of horns mounted thereon,a series of lower heater-bars secured to said horns, a se-' ries of movable arms to which said upper heater-bars are secured, a seam-compression roller mounted 'upon'a reciprocating slide,

and a can body ejector mounted upon a reciprocating slide, substantiallyas specified. 8. The combination with a movable carrier,

of a series of pairs of heater-bars mounted thereon, and a series of electric heaters or carbons inside said bars and electric contacts or connections for the heaters, substantially bons inside said bars, and contact or collector rings on said carrier and with'which said electric heaters or carbons are connected in multiple, substantially as specified.

10.- The combination with a movable carrier,-of a series of pairs of heater-bars mounted thereon, a series of electric heaters orcarbons inside said bars, and-contact or collector rings on said carrier and with which said elec tric heaters'or carbons are connected in multiple, the upper heater-bars of each pair being secured to movable arms on said carrier, substantially as specified.

rier, of a series of pairs of heater-bars mounted thereon, a series of electric heaters or carbons inside said bars, and contact or collector rings on said carrierand with which said elec-' tric heaters or carbons are connected in multiple, the upper heater-bars of each pair being secured to movable arms on said carrier, and a cam or track for lifting or raising said arms, substantially as specified.

12. The combination with a movable carrier, of a series of pairs of heater-bars mounted thereon, a series of electric heaters or carbons inside said bars, and contact or collector rings on said carrier and with which said electric heaters or carbonsare connected in multiple, the upper heater-bars of each pair being secured to'movable arms on said carrier, a cam or track for lifting or raising said arms,- and a seam-compressing device, substantially as specified.

13. The .combination with a movable carrier, of a series of pairs of heater-barsmounted'thereon, a series of electric heaters or carbons inside said bars, andv electric contacts or connections-for the heaters, and aseam-com pressing device, substantially as specified.

14. Thecombination with a movable carrier, of aseries of pairs of heater-bars mounted thereon, a series of electric heaters or carbons inside said bars, and electric contacts or connections for the heaters, a seam-compressing device, and a can-body ejector, substantially as specified.

15. The, combination with a movable carrier, of a series of pairs of heater-bars mount ed thereon, a series of electric heaters or carbons inside said ba'rs,contact or'collector rings on said carrier and with which said electric heaters or carbons are connected in multiple, the upper heater-bars of each pair being secured to movable arms on said carrier,a seamcompressing roller and a reciprocating slide upon which it is mounted, substantially as specified. I p

16. The combination with'a movable/cm"- rier, of a series of pairs of heater-bars mounted there'on,'a series of electric heaters or car bons inside said bars, contact or collector rings on said-carrier and with which said electric heaters or carbons are connectedin multiple, the upper heater-bars of each pair being se cured to movable arms on said carrier, a cam or track for lifting or raising said arms,a seamcompressing roller and a reciprocating slide .upon which itvis mounted, substantially as or track for lifting or raising said arms,a seamcompressing roller and a reciprocating slide 11. The combination with a movable carupon which it is mounted, and a reciprocating can-body ejector, substantially as speciis mounted, and a device engaged by the horn 1o fied. for setting said reciprocating seam-compress- 18. The combination with a movable caring-roller-carrying siide in operation, subrier, of a series of pairs of heater-bars mountstantially as specified.

ed thereon, a series of electric heaters or car- EDWIN NORTON.

bons inside said bars, a series of horns on said ARTHUR P. KENNEDY. carrier to which the lower heater-bars of each Witnesses: pair are secured, a seam-compressing roller, 11. M. MUNDAY,

a reciprocating slide upon which said roller EDMUND ADCOCK. 

